timing advance

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timing advance #692393 02/01/06 10:34 PM

Joined: Jun 2004

Posts: 435

LONG ISLAND N.Y.

lookmomnobrains Offline

Mudrunner

im still having some trouble trying to get power from my 84' truck. i thought i was having carb problems but now i think timing could be the culprit. my truck makes full power and falls flat on its face at 4000 almost every time. could my vacum advance not be working properly? i have another dist for this truck.

87 4runner 33" bfg mt's no lift. dubbed the marine by my frinds. dead as of august 14 2005. 84 ex cab p/u 33"a/t, 3" suspension+3"bodylift, thorley header and 2.25xhaust, downey midrange cam+rocker set, very milled head! NO RUST!

Re: timing advance [Re: lookmomnobrains] #692394 02/02/06 03:02 AM

Joined: Oct 2002

Posts: 15,887

Fairbanks, Alaska

kewlynx

Toyota & Classifieds Moderator

On the carbies, you remove and plug the vacuum advance, then set your timing to 0 dg tdc. When you hook the vacuums back up, you should see it advance to right around 8 dg.

If you have a vacuum tester, you can hook up right off the distributor with the cap off and observe the motion if working.

Consider also the signal generator; those give up, tho' once in a great while.

EGR and plate aren't all carboned up, or have you looked yet?

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